4 * StatusNet - the distributed open-source microblogging tool
5 * Copyright (C) 2009-2010, StatusNet, Inc.
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * @category Installation
21 * @package Installation
23 * @author Adrian Lang <mail@adrianlang.de>
24 * @author Brenda Wallace <shiny@cpan.org>
25 * @author Brett Taylor <brett@webfroot.co.nz>
26 * @author Brion Vibber <brion@pobox.com>
27 * @author CiaranG <ciaran@ciarang.com>
28 * @author Craig Andrews <candrews@integralblue.com>
29 * @author Eric Helgeson <helfire@Erics-MBP.local>
30 * @author Evan Prodromou <evan@status.net>
31 * @author Mikael Nordfeldth <mmn@hethane.se>
32 * @author Robin Millette <millette@controlyourself.ca>
33 * @author Sarven Capadisli <csarven@status.net>
34 * @author Tom Adams <tom@holizz.com>
35 * @author Zach Copley <zach@status.net>
36 * @copyright 2009-2010 StatusNet, Inc http://status.net
37 * @copyright 2009-2014 Free Software Foundation, Inc http://www.fsf.org
38 * @license GNU Affero General Public License http://www.gnu.org/licenses/
40 * @link http://status.net
43 abstract class Installer
46 public $sitename, $server, $path, $fancy, $siteProfile, $ssl;
48 public $host, $database, $dbtype, $username, $password, $db;
50 public $avatarDir, $fileDir;
51 /** Administrator info */
52 public $adminNick, $adminPass, $adminEmail;
53 /** Should we skip writing the configuration file? */
54 public $skipConfig = false;
56 public static $dbModules = array(
58 'name' => 'MariaDB 10.3+',
59 'check_module' => 'mysqli',
60 'scheme' => 'mysqli', // DSN prefix for PEAR::DB
63 'name' => 'PostgreSQL',
64 'check_module' => 'pgsql',
65 'scheme' => 'pgsql', // DSN prefix for PEAR::DB
70 * Attempt to include a PHP file and report if it worked, while
71 * suppressing the annoying warning messages on failure.
73 private function haveIncludeFile($filename) {
74 $old = error_reporting(error_reporting() & ~E_WARNING);
75 $ok = include_once($filename);
76 error_reporting($old);
81 * Check if all is ready for installation
85 function checkPrereqs()
89 $config = INSTALLDIR.'/config.php';
90 if (!$this->skipConfig && file_exists($config)) {
91 if (!is_writable($config) || filesize($config) > 0) {
92 if (filesize($config) == 0) {
93 $this->warning('Config file "config.php" already exists and is empty, but is not writable.');
95 $this->warning('Config file "config.php" already exists.');
101 if (version_compare(PHP_VERSION, '5.5.0', '<')) {
102 $this->warning('Require PHP version 5.5.0 or greater.');
106 $reqs = array('gd', 'curl', 'intl', 'json',
107 'xmlwriter', 'mbstring', 'xml', 'dom', 'simplexml');
109 foreach ($reqs as $req) {
110 if (!$this->checkExtension($req)) {
111 $this->warning(sprintf('Cannot load required extension: <code>%s</code>', $req));
116 // Make sure we have at least one database module available
117 $missingExtensions = array();
118 foreach (self::$dbModules as $type => $info) {
119 if (!$this->checkExtension($info['check_module'])) {
120 $missingExtensions[] = $info['check_module'];
124 if (count($missingExtensions) == count(self::$dbModules)) {
125 $req = implode(', ', $missingExtensions);
126 $this->warning(sprintf('Cannot find a database extension. You need at least one of %s.', $req));
130 // @fixme this check seems to be insufficient with Windows ACLs
131 if (!$this->skipConfig && !is_writable(INSTALLDIR)) {
132 $this->warning(sprintf('Cannot write config file to: <code>%s</code></p>', INSTALLDIR),
133 sprintf('On your server, try this command: <code>chmod a+w %s</code>', INSTALLDIR));
137 // Check the subdirs used for file uploads
138 // TODO get another flag for this --skipFileSubdirCreation
139 if (!$this->skipConfig) {
140 define('GNUSOCIAL', true);
141 define('STATUSNET', true);
142 require_once INSTALLDIR . '/lib/language.php';
143 $_server=$this->server; $_path=$this->path; // We won't be using those so it's safe to do this small hack
144 require_once INSTALLDIR.DIRECTORY_SEPARATOR.'lib'.DIRECTORY_SEPARATOR.'util.php';
145 require_once INSTALLDIR.DIRECTORY_SEPARATOR.'lib'.DIRECTORY_SEPARATOR.'default.php';
146 $fileSubdirs = [empty($this->avatarDir) ? $default['avatar']['dir'] : $this->avatarDir,
147 empty($this->fileDir) ? $default['attachments']['dir'] : $this->fileDir];
149 foreach ($fileSubdirs as $fileFullPath) {
150 if (!file_exists($fileFullPath)) {
151 $pass = $pass && mkdir($fileFullPath);
152 } elseif (!is_dir($fileFullPath)) {
153 $this->warning(sprintf('GNU social expected a directory but found something else on this path: %s', $fileFullPath),
154 'Either make sure it goes to a directory or remove it and a directory will be created.');
156 } elseif (!is_writable($fileFullPath)) {
157 $this->warning(sprintf('Cannot write to %s directory: <code>%s</code>', $fileSubdir, $fileFullPath),
158 sprintf('On your server, try this command: <code>chmod a+w %s</code>', $fileFullPath));
167 * Checks if a php extension is both installed and loaded
169 * @param string $name of extension to check
171 * @return boolean whether extension is installed and loaded
173 function checkExtension($name)
175 if (extension_loaded($name)) {
177 } elseif (function_exists('dl') && ini_get('enable_dl') && !ini_get('safe_mode')) {
178 // dl will throw a fatal error if it's disabled or we're in safe mode.
179 // More fun, it may not even exist under some SAPIs in 5.3.0 or later...
180 $soname = $name . '.' . PHP_SHLIB_SUFFIX;
181 if (PHP_SHLIB_SUFFIX == 'dll') {
182 $soname = "php_" . $soname;
191 * Basic validation on the database paramters
192 * Side effects: error output if not valid
194 * @return boolean success
196 function validateDb()
200 if (empty($this->host)) {
201 $this->updateStatus("No hostname specified.", true);
205 if (empty($this->database)) {
206 $this->updateStatus("No database specified.", true);
210 if (empty($this->username)) {
211 $this->updateStatus("No username specified.", true);
215 if (empty($this->sitename)) {
216 $this->updateStatus("No sitename specified.", true);
224 * Basic validation on the administrator user paramters
225 * Side effects: error output if not valid
227 * @return boolean success
229 function validateAdmin()
233 if (empty($this->adminNick)) {
234 $this->updateStatus("No initial user nickname specified.", true);
237 if ($this->adminNick && !preg_match('/^[0-9a-z]{1,64}$/', $this->adminNick)) {
238 $this->updateStatus('The user nickname "' . htmlspecialchars($this->adminNick) .
239 '" is invalid; should be plain letters and numbers no longer than 64 characters.', true);
242 // @fixme hardcoded list; should use Nickname::isValid()
243 // if/when it's safe to have loaded the infrastructure here
244 $blacklist = array('main', 'panel', 'twitter', 'settings', 'rsd.xml', 'favorited', 'featured', 'favoritedrss', 'featuredrss', 'rss', 'getfile', 'api', 'groups', 'group', 'peopletag', 'tag', 'user', 'message', 'conversation', 'notice', 'attachment', 'search', 'index.php', 'doc', 'opensearch', 'robots.txt', 'xd_receiver.html', 'facebook', 'activity');
245 if (in_array($this->adminNick, $blacklist)) {
246 $this->updateStatus('The user nickname "' . htmlspecialchars($this->adminNick) .
247 '" is reserved.', true);
251 if (empty($this->adminPass)) {
252 $this->updateStatus("No initial user password specified.", true);
260 * Make sure a site profile was selected
262 * @return type boolean success
264 function validateSiteProfile()
266 if (empty($this->siteProfile)) {
267 $this->updateStatus("No site profile selected.", true);
275 * Set up the database with the appropriate function for the selected type...
276 * Saves database info into $this->db.
278 * @fixme escape things in the connection string in case we have a funny pass etc
279 * @return mixed array of database connection params on success, false on failure
281 function setupDatabase()
284 throw new Exception("Bad order of operations: DB already set up.");
286 $this->updateStatus("Starting installation...");
288 if (empty($this->password)) {
291 $auth = ":$this->password";
293 $scheme = self::$dbModules[$this->dbtype]['scheme'];
294 $dsn = "{$scheme}://{$this->username}{$auth}@{$this->host}/{$this->database}";
296 $this->updateStatus("Checking database...");
297 $conn = $this->connectDatabase($dsn);
299 if (!$conn instanceof DB_common) {
300 // Is not the right instance
301 throw new Exception('Cannot connect to database: ' . $conn->getMessage());
304 // ensure database encoding is UTF8
305 if ($this->dbtype == 'mysql') {
306 // @fixme utf8m4 support for mysql 5.5?
307 // Force the comms charset to utf8 for sanity
308 // This doesn't currently work. :P
309 //$conn->executes('set names utf8');
310 } else if ($this->dbtype == 'pgsql') {
311 $record = $conn->getRow('SHOW server_encoding');
312 if ($record->server_encoding != 'UTF8') {
313 $this->updateStatus("GNU social requires UTF8 character encoding. Your database is ". htmlentities($record->server_encoding));
318 $res = $this->updateStatus("Creating database tables...");
319 if (!$this->createCoreTables($conn)) {
320 $this->updateStatus("Error creating tables.", true);
324 foreach (array('sms_carrier' => 'SMS carrier',
325 'notice_source' => 'notice source',
326 'foreign_services' => 'foreign service')
328 $this->updateStatus(sprintf("Adding %s data to database...", $name));
329 $res = $this->runDbScript($scr.'.sql', $conn);
330 if ($res === false) {
331 $this->updateStatus(sprintf("Can't run %s script.", $name), true);
336 $db = array('type' => $this->dbtype, 'database' => $dsn);
341 * Open a connection to the database.
346 function connectDatabase($dsn)
349 return $_DB->connect($dsn);
353 * Create core tables on the given database connection.
355 * @param DB_common $conn
357 function createCoreTables(DB_common $conn)
359 $schema = Schema::get($conn);
360 $tableDefs = $this->getCoreSchema();
361 foreach ($tableDefs as $name => $def) {
362 if (defined('DEBUG_INSTALLER')) {
365 $schema->ensureTable($name, $def);
371 * Fetch the core table schema definitions.
373 * @return array of table names => table def arrays
375 function getCoreSchema()
378 include INSTALLDIR . '/db/core.php';
383 * Return a parseable PHP literal for the given value.
384 * This will include quotes for strings, etc.
389 function phpVal($val)
391 return var_export($val, true);
395 * Return an array of parseable PHP literal for the given values.
396 * These will include quotes for strings, etc.
401 function phpVals($map)
403 return array_map(array($this, 'phpVal'), $map);
407 * Write a stock configuration file.
409 * @return boolean success
411 * @fixme escape variables in output in case we have funny chars, apostrophes etc
415 $vals = $this->phpVals(array(
416 'sitename' => $this->sitename,
417 'server' => $this->server,
418 'path' => $this->path,
419 'ssl' => in_array($this->ssl, array('never', 'always'))
422 'db_database' => $this->db['database'],
423 'db_type' => $this->db['type']
426 // assemble configuration file in a string
428 "if (!defined('GNUSOCIAL')) { exit(1); }\n\n".
431 "\$config['site']['name'] = {$vals['sitename']};\n\n".
434 "\$config['site']['server'] = {$vals['server']};\n".
435 "\$config['site']['path'] = {$vals['path']}; \n\n".
436 "\$config['site']['ssl'] = {$vals['ssl']}; \n\n".
438 // checks if fancy URLs are enabled
439 ($this->fancy ? "\$config['site']['fancy'] = true;\n\n":'').
442 "\$config['db']['database'] = {$vals['db_database']};\n\n".
443 ($this->db['type'] == 'pgsql' ? "\$config['db']['quote_identifiers'] = true;\n\n":'').
444 "\$config['db']['type'] = {$vals['db_type']};\n\n".
446 "// Uncomment below for better performance. Just remember you must run\n".
447 "// php scripts/checkschema.php whenever your enabled plugins change!\n".
448 "//\$config['db']['schemacheck'] = 'script';\n\n";
450 // Normalize line endings for Windows servers
451 $cfg = str_replace("\n", PHP_EOL, $cfg);
453 // write configuration file out to install directory
454 $res = file_put_contents(INSTALLDIR.'/config.php', $cfg);
460 * Write the site profile. We do this after creating the initial user
461 * in case the site profile is set to single user. This gets around the
462 * 'chicken-and-egg' problem of the system requiring a valid user for
463 * single user mode, before the intial user is actually created. Yeah,
464 * we should probably do this in smarter way.
466 * @return int res number of bytes written
468 function writeSiteProfile()
470 $vals = $this->phpVals(array(
471 'site_profile' => $this->siteProfile,
472 'nickname' => $this->adminNick
477 "\$config['site']['profile'] = {$vals['site_profile']};\n";
479 if ($this->siteProfile == "singleuser") {
480 $cfg .= "\$config['singleuser']['nickname'] = {$vals['nickname']};\n\n";
485 // Normalize line endings for Windows servers
486 $cfg = str_replace("\n", PHP_EOL, $cfg);
488 // write configuration file out to install directory
489 $res = file_put_contents(INSTALLDIR.'/config.php', $cfg, FILE_APPEND);
495 * Install schema into the database
497 * @param string $filename location of database schema file
498 * @param DB_common $conn connection to database
500 * @return boolean - indicating success or failure
502 function runDbScript($filename, DB_common $conn)
504 $sql = trim(file_get_contents(INSTALLDIR . '/db/' . $filename));
505 $stmts = explode(';', $sql);
506 foreach ($stmts as $stmt) {
508 if (!mb_strlen($stmt)) {
512 $res = $conn->simpleQuery($stmt);
513 } catch (Exception $e) {
514 $error = $e->getMessage();
515 $this->updateStatus("ERROR ($error) for SQL '$stmt'");
523 * Create the initial admin user account.
524 * Side effect: may load portions of GNU social framework.
525 * Side effect: outputs program info
527 function registerInitialUser()
529 // initalize hostname from install arguments, so it can be used to find
530 // the /etc config file from the commandline installer
531 $server = $this->server;
532 require_once INSTALLDIR . '/lib/common.php';
534 $data = array('nickname' => $this->adminNick,
535 'password' => $this->adminPass,
536 'fullname' => $this->adminNick);
537 if ($this->adminEmail) {
538 $data['email'] = $this->adminEmail;
541 $user = User::register($data, true); // true to skip email sending verification
542 } catch (Exception $e) {
546 // give initial user carte blanche
548 $user->grantRole('owner');
549 $user->grantRole('moderator');
550 $user->grantRole('administrator');
556 * The beef of the installer!
557 * Create database, config file, and admin user.
559 * Prerequisites: validation of input data.
561 * @return boolean success
567 $this->updateStatus("Initializing...");
568 ini_set('display_errors', 1);
569 error_reporting(E_ALL & ~E_STRICT & ~E_NOTICE);
570 if (!defined('GNUSOCIAL')) {
571 define('GNUSOCIAL', true);
573 if (!defined('STATUSNET')) {
574 define('STATUSNET', true);
577 require_once INSTALLDIR . '/lib/framework.php';
578 GNUsocial::initDefaults($this->server, $this->path);
580 if ($this->siteProfile == "singleuser") {
581 // Until we use ['site']['profile']==='singleuser' everywhere
582 $config['singleuser']['enabled'] = true;
586 $this->db = $this->setupDatabase();
588 // database connection failed, do not move on to create config file.
591 } catch (Exception $e) {
592 // Lower-level DB error!
593 $this->updateStatus("Database error: " . $e->getMessage(), true);
597 if (!$this->skipConfig) {
598 // Make sure we can write to the file twice
599 $oldUmask = umask(000);
601 $this->updateStatus("Writing config file...");
602 $res = $this->writeConf();
605 $this->updateStatus("Can't write config file.", true);
610 if (!empty($this->adminNick)) {
611 // Okay, cross fingers and try to register an initial user
612 if ($this->registerInitialUser()) {
614 "An initial user with the administrator role has been created."
618 "Could not create initial user account.",
625 if (!$this->skipConfig) {
626 $this->updateStatus("Setting site profile...");
627 $res = $this->writeSiteProfile();
630 $this->updateStatus("Can't write to config file.", true);
634 // Restore original umask
636 // Set permissions back to something decent
637 chmod(INSTALLDIR.'/config.php', 0644);
640 $scheme = $this->ssl === 'always' ? 'https' : 'http';
641 $link = "{$scheme}://{$this->server}/{$this->path}";
643 $this->updateStatus("GNU social has been installed at $link");
645 '<strong>DONE!</strong> You can visit your <a href="'.htmlspecialchars($link).'">new GNU social site</a> (log in as "'.htmlspecialchars($this->adminNick).'"). If this is your first GNU social install, make your experience the best possible by visiting our resource site to join the <a href="https://gnu.io/social/resources/">mailing list or IRC</a>. <a href="'.htmlspecialchars($link).'/doc/faq">FAQ is found here</a>.'
652 * Output a pre-install-time warning message
653 * @param string $message HTML ok, but should be plaintext-able
654 * @param string $submessage HTML ok, but should be plaintext-able
656 abstract function warning($message, $submessage='');
659 * Output an install-time progress message
660 * @param string $message HTML ok, but should be plaintext-able
661 * @param boolean $error true if this should be marked as an error condition
663 abstract function updateStatus($status, $error=false);